Home / 87,412.80-131,119.20-52,334.40

Finding the Fourth Proportional to 87,412.80, 131,119.20 and 52,334.40

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Solution

The fourth proportional to 87,412.80, 131,119.20 and 52,334.40 is: 78,501.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,412.80 : 131,119.20 = 52,334.40 : x
  2. Step 2: Convert to fraction form
    87,412.80/131,119.20 = 52,334.40/x
  3. Step 3: Cross multiply
    87,412.80x = 131,119.20 × 52,334.40
  4. Step 4: Simplify right side
    87,412.80x = 6,862,044,660.48
  5. Step 5: Solve for x
    x = 6,862,044,660.48/87,412.80
  6. Step 6: Final answer
    x = 78,501.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.